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How to save a good verification code image locally in php?

Use PHP to draw login verification pictures. Since the pictures are taken locally, I don't want to return the picture in the form of a link. I want to name the drawn verification code picture, then save it to the specified path, and then return a local URL address. To the front desk, the front end d...

phpcn_u1582 2017-05-16 13:04:04

There is a problem with the final call of php to implement image verification code?

According to php how to implement image verification code content guide encapsulation verification code class

罗梅光 2022-05-05 01:22:00

In PHP, how to encode the generated verification code image into base64?

PHP server Android client I need to encode the verification code image generated by the server into base64. Note: Instead of generating a display image, the generated image resource is directly encoded into base64 so how to do? ? ? ? ? ? ?

阿神 2017-05-27 17:42:38

How to verify that input password matches database hashed password in Laravel 8

How to verify user password from given request in Laravel? How is the password compared to the password hash stored in the database? **This is my controller**<?phpnamespaceApp\Http\Controllers;useIlluminate\Http\Request;useIlluminate\Support\Facades\DB;classMainControllerextendsController{func

P粉129731808 2023-08-28 14:25:49

javascript - Through the session, the verification code generated by php can be refreshed by clicking on it. Why?

Generate verification code through php, and then output it with img tag. Excuse me, why if there is session_start() and the onclick event is written like this, clicking will have the effect of refreshing the verification code? (A new verification code will appear) There is no session, and the click ...

PHP中文网 2017-05-16 12:59:41

Have any of you guys done a project that separates the front-end and back-end of php+vue.js? I would like to ask, the front-end sends a verification code to register and log in.

The front-end sends a SMS verification code to log in and register. How to maintain the session? And should the SMS verification code be stored in the database or in the session? Or is there any other better solution?

小萝卜头 2020-05-25 11:21:12

PHP, how to display the data with the same order number in the database into a table display of pictures

I would like to ask all the masters, how can I display the data of [same order number] in the table in the above database into a table display of the picture, and each order number forms such a table; [Use native to do it], my brother's Graduation project, please help me brothers and sisters, it is ...

Fllllll 2018-03-06 10:42:05

Validation rules for laravel form form validation

In laravel, when verifying whether fields are repeated, the following {code...} is verified. unique:users queries whether there are duplicates in the users table; but this is an operation on a single database; and what the current system needs to verify is not what I want. Database {code...} In data...

怪我咯 2017-05-16 16:55:44

How to do sliding verification?

Nowadays, many websites have a sliding verification under the registration form to replace the previous verification code input. If you slide the small icon to the corresponding position of the large picture, you will pass the verification. How do you do this?

朱 2019-08-17 04:43:08

java - Image verification code implementation principle

**Test website: http://con.monyun.cn:9960/acc... There is a verification code on this page. The url of this verification code is <img src="../aut_checkCode.hts?=0.8963835985936632" class="icd"> How to change the displayed image when clicking on the verification code...

怪我咯 2017-05-27 17:41:18

java - spring boot framework uses restful to verify whether the username exists

When using restful style to verify whether the user name exists, all normal names can be verified, but when verifying whether the email address exists, no parameters can be accepted. The code is as follows {code...} The following is a picture of the test

女神的闺蜜爱上我 2017-06-28 09:25:42

python selenium gets image verification code

I want to cache the image verification code locally, and then let the user see the image through the web service and manually type the code to log in. Since the official operation is interface-less, selenium screenshots cannot be used. In addition to selenium screenshot and right-click method, is th...

PHP中文网 2017-06-12 09:21:28

The picture of the verification code cannot be displayed

It can generate four-letter words, but it cannot generate pictures. The caught exception prompts that var numtxt in the refresh method = req.session.validat_num = validat_num in r.random(4) is undefined. Does anyone know what is going on?

回眸的冷漠 2018-11-18 19:46:33

Why does my verification code only show one number?

//My code for this lesson is like this. I checked it several times and didn't see any errors, but the verification code displayed only has one number...Why is this happening? Please give me some guidance<?php// Generate the background header of the verification code('Content-type:image/jpeg'); //...

丫头 2018-04-21 11:01:31

phpstorm registration code

I couldn't use the registration verification address attached to the PHP Chinese website. I found the cracked registration code online. This is a screenshot of my successful registration! Registration code address: http://idea.lanyus.com/getkey?userName=lan+yu

小生我怕怕啊 2018-07-05 11:23:36

Laravel 9 rejects valid password hashed with bcrypt

I've spent a few days troubleshooting some password validation failures in Laravel9. The password testperson resolves to the hash value $2y$10$5xc/wAmNCKV.YhpWOfyNoetCj/r3Fs5TyAskgZuIF/LEItWfm7rPW. A direct query of the corresponding database table confirms that this is the correct hash value. Howev...

P粉270842688 2024-03-28 17:22:24

Official team, please solve the bug

I use PHP version 5.4 of the PHP toolbox, and the verification code can be displayed, but it cannot be displayed when I switch to PHP version 5.6 or 7. What I tested was the verification code class that comes with the tp5 framework. What's going on?

冷笑浅兮 2017-11-12 23:08:40

Refresh the image, no new image is generated.

Teacher Zhu, why do I write the refresh verification code according to your method (the code is the same, there is no mistake), and there are pictures when I log in for the first time, but there are no pictures after refreshing.

东郭 2017-08-27 02:06:28

Image verification code reports error after using session

This is the effect when the session is not open (the picture of the verification code can be displayed normally) ------------------------------Gorgeous dividing line-- ----------------------------------------This is the effect after opening the session (no picture show)------------------------------...

富贵 2017-10-04 01:31:24

Click to switch verification code error, cannot get the picture

Error: captcha:1 GET http://localhost/captcha?id=1504664532 404 (Not Found) Then the image obtained is the same as without setting the verification code.

清楚叛逆者 2017-09-06 10:23:40